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Finding the Fourth Proportional to 471.02, 706.56 and 162.87

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Solution

The fourth proportional to 471.02, 706.56 and 162.87 is: 244.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    471.02 : 706.56 = 162.87 : x
  2. Step 2: Convert to fraction form
    471.02/706.56 = 162.87/x
  3. Step 3: Cross multiply
    471.02x = 706.56 × 162.87
  4. Step 4: Simplify right side
    471.02x = 115,077.43
  5. Step 5: Solve for x
    x = 115,077.43/471.02
  6. Step 6: Final answer
    x = 244.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.